temperature is calculated in the lowest order of fluctuations so as to satisfy the gauge in variance. Effects of forward electron-scattering due to impurities are taken into account as well as those of backward scattering. It is shown that in the pure limit the coclnctivity is enhanced by flnctuations like (T -T,) ·' 12 when ,\>,\,=1.2, }. being the dimensionless coupl ing constant. 'While in the dirty limit, the conductivity is reduced by fluctuations. Essential features are qualitatively similar to those given by Patton and Sham except /.,=1.6 and effects of the forward scattering. Effects of the forward scattering does not affect the result in the pure limit, while the resistivity is strongly increased by the forward scattering in the dirty limit.